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52125111 = 3217340687
BaseRepresentation
bin1100011011010…
…1110110110111
310122002020012200
43012311312313
5101321000421
65101115543
71202025153
oct306656667
9118066180
1052125111
1127472405
1215558bb3
13aa5077c
146ccc063
154899726
hex31b5db7

52125111 has 12 divisors (see below), whose sum is σ = 79720992. Its totient is φ = 32705856.

The previous prime is 52125103. The next prime is 52125121. The reversal of 52125111 is 11152125.

It is not a de Polignac number, because 52125111 - 23 = 52125103 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (52125121) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 170191 + ... + 170496.

It is an arithmetic number, because the mean of its divisors is an integer number (6643416).

Almost surely, 252125111 is an apocalyptic number.

52125111 is a gapful number since it is divisible by the number (51) formed by its first and last digit.

52125111 is a deficient number, since it is larger than the sum of its proper divisors (27595881).

52125111 is a wasteful number, since it uses less digits than its factorization.

52125111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 340710 (or 340707 counting only the distinct ones).

The product of its digits is 100, while the sum is 18.

The square root of 52125111 is about 7219.7722263240. The cubic root of 52125111 is about 373.5502209315.

Adding to 52125111 its reverse (11152125), we get a palindrome (63277236).

It can be divided in two parts, 52125 and 111, that multiplied together give a palindrome (5785875).

The spelling of 52125111 in words is "fifty-two million, one hundred twenty-five thousand, one hundred eleven".

Divisors: 1 3 9 17 51 153 340687 1022061 3066183 5791679 17375037 52125111